1020022200091 has 2 divisors, whose sum is σ = 1020022200092. Its totient is φ = 1020022200090.

The previous prime is 1020022200049. The next prime is 1020022200137. The reversal of 1020022200091 is 1900022200201.

It is a weak prime.

It is an emirp because it is prime and its reverse (1900022200201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020022200091 - 2¹⁵ = 1020022167323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020022200191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510011100045 + 510011100046.

It is an arithmetic number, because the mean of its divisors is an integer number (510011100046).

Almost surely, 2^{1020022200091} is an apocalyptic number.

1020022200091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020022200091 is an equidigital number, since it uses as much as digits as its factorization.

1020022200091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1020022200091 its reverse (1900022200201), we get a palindrome (2920044400292).

The spelling of 1020022200091 in words is "one trillion, twenty billion, twenty-two million, two hundred thousand, ninety-one".